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Softeria

Microsoft 365 MCP Server

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get-mailbox-settings

get-mailbox-settings
Read-only

Get the user's mailboxSettings. You can view all mailbox settings, or get specific settings. Users can set the following settings for their mailboxes through an Outlook client: Users can set their preferred date and time formats using…

Instructions

Get the user's mailboxSettings. You can view all mailbox settings, or get specific settings. Users can set the following settings for their mailboxes through an Outlook client: Users can set their preferred date and time formats using Outlook on the web. Users can choose one of the supported short date or short time formats. This GET operation returns the format the user has chosen. Users can set the time zone they prefer on any Outlook client, by choosing from the supported time zones that their administrator has set up for their mailbox server. The administrator can set up time zones in the Windows time zone format or Internet Assigned Numbers Authority (IANA) time zone (also known as Olson time zone) format. The Windows format is the default. This GET operation returns the user's preferred time zone in the format that the administrator has set up. If you want that time zone to be in a specific format (Windows or IANA), you can first update the preferred time zone in that format as a mailbox setting. Subsequently you will be able to get the time zone in that format. Alternatively, you can manage the format conversion separately in your app.

💡 TIP: Gets the current user's mailbox settings including automaticRepliesSetting (out-of-office status, message, scheduledStartDateTime/EndDateTime, externalAudience), language, timeZone, dateFormat, timeFormat, delegateMeetingMessageDeliveryOptions, and userPurpose.

Input Schema

NameRequiredDescriptionDefault
expandNoNavigation properties to inline, e.g. attachments on a message or event. Only navigation properties can be expanded: expanding a non-navigation property such as a message body fails with "Parsing OData Select and Expand failed". Request ordinary fields with $select instead. Some APIs accept only one relationship per request, so prefer a single value. Some relationships support nested selection, e.g. children($select=id,name).
selectNoComma-separated fields to return, e.g. id,subject,from,receivedDateTime
fetchAllPagesNoFollow @odata.nextLink and merge up to 100 pages into one response. Can return enormous payloads—only when the user explicitly needs a full export. Prefer a small $top first, then paginate or narrow with $filter/$search.
includeHeadersNoInclude response headers (including ETag) in the response metadata
excludeResponseNoExclude the full response body and only return success or failure indication

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.166.0
    • changedInput schema / properties / expand / description
      Previous value: -"Navigation properties to inline, e.g. attachments on a message or event. Only navigation properties can be expanded: expanding a non-navigation property such as a message body fails with \"Parsing OData Select and Expand failed\", and an unsupported value may be ignored rather than reported. Request ordinary fields with $select instead."New value: +"Navigation properties to inline, e.g. attachments on a message or event. Only navigation properties can be expanded: expanding a non-navigation property such as a message body fails with \"Parsing OData Select and Expand failed\". Request ordinary fields with $select instead. Some APIs accept only one relationship per request, so prefer a single value. Some relationships support nested selection, e.g. children($select=id,name)."
  2. Changed5 schema fields changedv0.154.2
    • addedInput schema / properties / expand / anyOf
      Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+]
    • removedInput schema / properties / expand / items
      Removed value: -{
-  "type": "string"
-}
    • removedInput schema / properties / expand / type
      Removed value: -"array"
    • addedInput schema / properties / select / anyOf
      Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+]
    • removedInput schema / properties / select / type
      Removed value: -"string"
  3. Addedv0.134.4
  4. Removedv0.131.2
  5. Addedv0.114.0
  6. Removedv0.112.2
  7. Addedv0.110.0
  8. Removedv0.108.0
  9. Addedv0.96.0

TDQS

A3.5/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and destructiveHint=false, so safety is covered. The description adds real behavioral context beyond that: the returned time zone format depends on what the administrator configured, and a specific format can only be obtained by first updating the setting. It does not mention pagination or response shape, but the added semantics are meaningful.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The core purpose is front-loaded, but the middle is bloated with Outlook-client prose about how users set date/time formats and administrator time zone configuration that an agent does not need to call the tool. Only the closing TIP about returned fields earns its place; the rest is copied API documentation.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

There is no output schema, so the description must carry return-value information, and the TIP does list the returned fields (automaticRepliesSetting, language, timeZone, dateFormat, timeFormat, delegateMeetingMessageDeliveryOptions, userPurpose). That covers the essential gap; only pagination and response envelope behavior remain unspecified.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so expand, select, fetchAllPages, includeHeaders, and excludeResponse are fully documented in the schema. The description mentions getting 'specific settings' (implying $select) but adds no syntax or format detail beyond the schema. Baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a specific verb+resource ('Get the user's mailboxSettings') and clarifies that it can return all settings or a subset. It is clearly distinguishable from the sibling update-mailbox-settings by framing the operation as a GET that 'returns' the user's chosen formats, though it never names the sibling explicitly.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

'You can view all mailbox settings, or get specific settings' implies usage but does not state when to prefer this tool over update-mailbox-settings or list-supported-time-zones, nor any prerequisites. Usage is inferable but not guided.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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